app/src/main/java/net/ktnx/mobileledger/ui/new_transaction/NewTransactionHeaderItemHolder.java

   1 /*
   2  * Copyright © 2021 Damyan Ivanov.
   3  * This file is part of MoLe.
   4  * MoLe is free software: you can distribute it and/or modify it
   5  * under the term of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 3 of the License, or
   7  * (at your opinion), any later version.
   8  *
   9  * MoLe is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  12  * GNU General Public License terms for details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with MoLe. If not, see <https://www.gnu.org/licenses/>.
  16  */
  17
  18 package net.ktnx.mobileledger.ui.new_transaction;
  19
  20 import android.annotation.SuppressLint;
  21 import android.graphics.Typeface;
  22 import android.text.Editable;
  23 import android.text.TextUtils;
  24 import android.text.TextWatcher;
  25 import android.view.View;
  26 import android.widget.EditText;
  27 import android.widget.ListAdapter;
  28 import android.widget.TextView;
  29
  30 import androidx.annotation.ColorInt;
  31 import androidx.annotation.NonNull;
  32 import androidx.recyclerview.widget.RecyclerView;
  33
  34 import net.ktnx.mobileledger.R;
  35 import net.ktnx.mobileledger.databinding.NewTransactionHeaderRowBinding;
  36 import net.ktnx.mobileledger.db.TransactionDescriptionAutocompleteAdapter;
  37 import net.ktnx.mobileledger.model.Data;
  38 import net.ktnx.mobileledger.model.FutureDates;
  39 import net.ktnx.mobileledger.ui.DatePickerFragment;
  40 import net.ktnx.mobileledger.utils.Logger;
  41 import net.ktnx.mobileledger.utils.Misc;
  42 import net.ktnx.mobileledger.utils.SimpleDate;
  43
  44 import java.text.DecimalFormatSymbols;
  45 import java.text.ParseException;
  46
  47 class NewTransactionHeaderItemHolder extends NewTransactionItemViewHolder
  48         implements DatePickerFragment.DatePickedListener {
  49     private final NewTransactionHeaderRowBinding b;
  50     private boolean ignoreFocusChanges = false;
  51     private String decimalSeparator;
  52     private boolean inUpdate = false;
  53     private boolean syncingData = false;
  54     NewTransactionHeaderItemHolder(@NonNull NewTransactionHeaderRowBinding b,
  55                                    NewTransactionItemsAdapter adapter) {
  56         super(b.getRoot());
  57         this.b = b;
  58
  59         b.newTransactionDescription.setNextFocusForwardId(View.NO_ID);
  60
  61         b.newTransactionDate.setOnClickListener(v -> pickTransactionDate());
  62
  63         b.transactionCommentButton.setOnClickListener(v -> {
  64             b.transactionComment.setVisibility(View.VISIBLE);
  65             b.transactionComment.requestFocus();
  66         });
  67
  68         @SuppressLint("DefaultLocale") View.OnFocusChangeListener focusMonitor = (v, hasFocus) -> {
  69             final int id = v.getId();
  70             if (hasFocus) {
  71                 boolean wasSyncing = syncingData;
  72                 syncingData = true;
  73                 try {
  74                     final int pos = getBindingAdapterPosition();
  75                     if (id == R.id.transaction_comment) {
  76                         adapter.noteFocusIsOnTransactionComment(pos);
  77                     }
  78                     else if (id == R.id.new_transaction_description) {
  79                         adapter.noteFocusIsOnDescription(pos);
  80                     }
  81                     else
  82                         throw new IllegalStateException("Where is the focus? " + id);
  83                 }
  84                 finally {
  85                     syncingData = wasSyncing;
  86                 }
  87             }
  88
  89             if (id == R.id.transaction_comment) {
  90                 commentFocusChanged(b.transactionComment, hasFocus);
  91             }
  92         };
  93
  94         b.newTransactionDescription.setOnFocusChangeListener(focusMonitor);
  95         b.transactionComment.setOnFocusChangeListener(focusMonitor);
  96
  97         NewTransactionActivity activity = (NewTransactionActivity) b.getRoot()
  98                                                                     .getContext();
  99
 100         b.newTransactionDescription.setAdapter(
 101                 new TransactionDescriptionAutocompleteAdapter(activity));
 102         b.newTransactionDescription.setOnItemClickListener(
 103                 (parent, view, position, id) -> activity.onDescriptionSelected(
 104                         parent.getItemAtPosition(position)
 105                               .toString()));
 106
 107         decimalSeparator = "";
 108         Data.locale.observe(activity, locale -> decimalSeparator = String.valueOf(
 109                 DecimalFormatSymbols.getInstance(locale)
 110                                     .getMonetaryDecimalSeparator()));
 111
 112         final TextWatcher tw = new TextWatcher() {
 113             @Override
 114             public void beforeTextChanged(CharSequence s, int start, int count, int after) {
 115             }
 116
 117             @Override
 118             public void onTextChanged(CharSequence s, int start, int before, int count) {
 119             }
 120
 121             @Override
 122             public void afterTextChanged(Editable s) {
 123 //                debug("input", "text changed");
 124                 if (inUpdate)
 125                     return;
 126
 127                 Logger.debug("textWatcher", "calling syncData()");
 128                 if (syncData()) {
 129                     Logger.debug("textWatcher",
 130                             "syncData() returned, checking if transaction is submittable");
 131                     adapter.model.checkTransactionSubmittable(null);
 132                 }
 133                 Logger.debug("textWatcher", "done");
 134             }
 135         };
 136         b.newTransactionDescription.addTextChangedListener(tw);
 137         monitorComment(b.transactionComment);
 138
 139         commentFocusChanged(b.transactionComment, false);
 140
 141         adapter.model.getFocusInfo()
 142                      .observe(activity, this::applyFocus);
 143
 144         adapter.model.getShowComments()
 145                      .observe(activity, show -> b.transactionCommentLayout.setVisibility(
 146                              show ? View.VISIBLE : View.GONE));
 147     }
 148     private void applyFocus(NewTransactionModel.FocusInfo focusInfo) {
 149         if (ignoreFocusChanges) {
 150             Logger.debug("new-trans", "Ignoring focus change");
 151             return;
 152         }
 153         ignoreFocusChanges = true;
 154         try {
 155             if (((focusInfo == null) || (focusInfo.element == null) ||
 156                  focusInfo.position != getBindingAdapterPosition()))
 157                 return;
 158
 159             final NewTransactionModel.Item item = getItem();
 160             if (item == null)
 161                 return;
 162
 163             NewTransactionModel.Item head = item.toTransactionHead();
 164             // bad idea - double pop-up, and not really necessary.
 165             // the user can tap the input to get the calendar
 166             //if (!tvDate.hasFocus()) tvDate.requestFocus();
 167             switch (focusInfo.element) {
 168                 case TransactionComment:
 169                     b.transactionComment.setVisibility(View.VISIBLE);
 170                     b.transactionComment.requestFocus();
 171                     break;
 172                 case Description:
 173                     boolean focused = b.newTransactionDescription.requestFocus();
 174 //                            tvDescription.dismissDropDown();
 175                     if (focused)
 176                         Misc.showSoftKeyboard((NewTransactionActivity) b.getRoot()
 177                                                                         .getContext());
 178                     break;
 179             }
 180         }
 181         finally {
 182             ignoreFocusChanges = false;
 183         }
 184     }
 185     private void monitorComment(EditText editText) {
 186         editText.addTextChangedListener(new TextWatcher() {
 187             @Override
 188             public void beforeTextChanged(CharSequence s, int start, int count, int after) {
 189             }
 190             @Override
 191             public void onTextChanged(CharSequence s, int start, int before, int count) {
 192             }
 193             @Override
 194             public void afterTextChanged(Editable s) {
 195 //                debug("input", "text changed");
 196                 if (inUpdate)
 197                     return;
 198
 199                 Logger.debug("textWatcher", "calling syncData()");
 200                 syncData();
 201                 Logger.debug("textWatcher",
 202                         "syncData() returned, checking if transaction is submittable");
 203                 styleComment(editText, s.toString());
 204                 Logger.debug("textWatcher", "done");
 205             }
 206         });
 207     }
 208     private void commentFocusChanged(TextView textView, boolean hasFocus) {
 209         @ColorInt int textColor;
 210         textColor = b.dummyText.getTextColors()
 211                                .getDefaultColor();
 212         if (hasFocus) {
 213             textView.setTypeface(null, Typeface.NORMAL);
 214             textView.setHint(R.string.transaction_account_comment_hint);
 215         }
 216         else {
 217             int alpha = (textColor >> 24 & 0xff);
 218             alpha = 3 * alpha / 4;
 219             textColor = (alpha << 24) | (0x00ffffff & textColor);
 220             textView.setTypeface(null, Typeface.ITALIC);
 221             textView.setHint("");
 222             if (TextUtils.isEmpty(textView.getText())) {
 223                 textView.setVisibility(View.INVISIBLE);
 224             }
 225         }
 226         textView.setTextColor(textColor);
 227
 228     }
 229     private void setEditable(Boolean editable) {
 230         b.newTransactionDate.setEnabled(editable);
 231         b.newTransactionDescription.setEnabled(editable);
 232     }
 233     private void beginUpdates() {
 234         if (inUpdate)
 235             throw new RuntimeException("Already in update mode");
 236         inUpdate = true;
 237     }
 238     private void endUpdates() {
 239         if (!inUpdate)
 240             throw new RuntimeException("Not in update mode");
 241         inUpdate = false;
 242     }
 243     /**
 244      * syncData()
 245      * <p>
 246      * Stores the data from the UI elements into the model item
 247      * Returns true if there were changes made that suggest transaction has to be
 248      * checked for being submittable
 249      */
 250     private boolean syncData() {
 251         if (syncingData) {
 252             Logger.debug("new-trans", "skipping syncData() loop");
 253             return false;
 254         }
 255
 256         if (getBindingAdapterPosition() == RecyclerView.NO_POSITION) {
 257             // probably the row was swiped out
 258             Logger.debug("new-trans", "Ignoring request to syncData(): adapter position negative");
 259             return false;
 260         }
 261
 262
 263         boolean significantChange = false;
 264
 265         syncingData = true;
 266         try {
 267             final NewTransactionModel.Item item = getItem();
 268             if (item == null)
 269                 return false;
 270
 271             NewTransactionModel.TransactionHead head = item.toTransactionHead();
 272
 273             head.setDate(String.valueOf(b.newTransactionDate.getText()));
 274
 275             // transaction description is required
 276             if (TextUtils.isEmpty(head.getDescription()) !=
 277                 TextUtils.isEmpty(b.newTransactionDescription.getText()))
 278                 significantChange = true;
 279
 280             head.setDescription(String.valueOf(b.newTransactionDescription.getText()));
 281             head.setComment(String.valueOf(b.transactionComment.getText()));
 282
 283             return significantChange;
 284         }
 285         catch (ParseException e) {
 286             throw new RuntimeException("Should not happen", e);
 287         }
 288         finally {
 289             syncingData = false;
 290         }
 291     }
 292     private void pickTransactionDate() {
 293         DatePickerFragment picker = new DatePickerFragment();
 294         picker.setFutureDates(FutureDates.valueOf(mProfile.getFutureDates()));
 295         picker.setOnDatePickedListener(this);
 296         picker.setCurrentDateFromText(b.newTransactionDate.getText());
 297         picker.show(((NewTransactionActivity) b.getRoot()
 298                                                .getContext()).getSupportFragmentManager(), null);
 299     }
 300     /**
 301      * bind
 302      *
 303      * @param item updates the UI elements with the data from the model item
 304      */
 305     @SuppressLint("DefaultLocale")
 306     public void bind(@NonNull NewTransactionModel.Item item) {
 307         beginUpdates();
 308         try {
 309             syncingData = true;
 310             try {
 311                 NewTransactionModel.TransactionHead head = item.toTransactionHead();
 312                 b.newTransactionDate.setText(head.getFormattedDate());
 313
 314                 // avoid triggering completion pop-up
 315                 ListAdapter a = b.newTransactionDescription.getAdapter();
 316                 try {
 317                     b.newTransactionDescription.setAdapter(null);
 318                     b.newTransactionDescription.setText(head.getDescription());
 319                 }
 320                 finally {
 321                     b.newTransactionDescription.setAdapter(
 322                             (TransactionDescriptionAutocompleteAdapter) a);
 323                 }
 324
 325                 final String comment = head.getComment();
 326                 b.transactionComment.setText(comment);
 327                 styleComment(b.transactionComment, comment); // would hide or make it visible
 328
 329                 setEditable(true);
 330
 331                 NewTransactionItemsAdapter adapter =
 332                         (NewTransactionItemsAdapter) getBindingAdapter();
 333                 if (adapter != null)
 334                     applyFocus(adapter.model.getFocusInfo()
 335                                             .getValue());
 336             }
 337             finally {
 338                 syncingData = false;
 339             }
 340         }
 341         finally {
 342             endUpdates();
 343         }
 344     }
 345     private void styleComment(EditText editText, String comment) {
 346         final View focusedView = editText.findFocus();
 347         editText.setTypeface(null, (focusedView == editText) ? Typeface.NORMAL : Typeface.ITALIC);
 348         editText.setVisibility(
 349                 ((focusedView != editText) && TextUtils.isEmpty(comment)) ? View.INVISIBLE
 350                                                                           : View.VISIBLE);
 351     }
 352     @Override
 353     public void onDatePicked(int year, int month, int day) {
 354         final NewTransactionModel.Item item = getItem();
 355         if (item == null)
 356             return;
 357
 358         final NewTransactionModel.TransactionHead head = item.toTransactionHead();
 359         head.setDate(new SimpleDate(year, month + 1, day));
 360         b.newTransactionDate.setText(head.getFormattedDate());
 361
 362         boolean focused = b.newTransactionDescription.requestFocus();
 363         if (focused)
 364             Misc.showSoftKeyboard((NewTransactionActivity) b.getRoot()
 365                                                             .getContext());
 366
 367     }
 368 }